21210372

素因数分解:

$2^2\times 3^2\times {\mathrm{431}}^1\times {\mathrm{1367}}^1$

素因数の和:1808

約数の個数: 36

約数和(自身を含む): 53778816

約数和(自身を除く): 32568444

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 431, 862, 1293, 1367, 1724, 2586, 2734, 3879, 4101, 5172, 5468, 7758, 8202, 12303, 15516, 16404, 24606, 49212, 589177, 1178354, 1767531, 2356708, 3535062, 5302593, 7070124, 10605186, 21210372]

約数ペア:

[(1, 21210372), (2, 10605186), (3, 7070124), (4, 5302593), (6, 3535062), (9, 2356708), (12, 1767531), (18, 1178354), (36, 589177), (431, 49212), (862, 24606), (1293, 16404), (1367, 15516), (1724, 12303), (2586, 8202), (2734, 7758), (3879, 5468), (4101, 5172)]